Variable: gnus-refer-thread-use-nnir
gnus-refer-thread-use-nnir is an alias and customizable for
gnus-refer-thread-use-search, defined in gnus-sum.el.gz.
This variable is obsolete since 28.1; use
gnus-refer-thread-use-search instead.
Value
nil
Documentation
Specify where to find articles when referring threads.
A nil value restricts searches for thread-related articles to the current group; a value of t searches all groups on the server; a list of servers and groups (where each element is a list whose car is the server and whose cdr is a list of groups on this server or nil to search the entire server) searches these server/groups. This may usefully be set as a group parameter.
Probably introduced at or before Emacs version 28.1.
Aliases
gnus-refer-thread-use-nnir (obsolete since 28.1)